Hi Guys, I have had trouble posting to asterisk-dev, hope this gets thru.
Oslec uses about 20/MIPs ch on an x86 with a 256 tap (32ms) tail: http://www.rowetel.com/ucasterisk/oslec.html#speed On a 1 GHz machine this 1000/20 = 50 echo cancellers at 100% CPU load. So in practice a few analog ports or even a T1 is no problem. With further optimisation it could handle multiple T1/E1s. Hans, it does not use a FFT, just regular FIR filtering. Oslec has been tested on several alpha and now beta sites - compared to MG2 it performs better. It cancels echo in cases where MG2 (or the other zaptel echo cans) doesn't. One tester has reported it to be superior to the Octasic soft-echo, another has said it's closer to HPEC than MG2. Except its free :-) Thanks, David _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
